UA72391A - Method and device for production of steady aerosol spray - Google Patents

Abstract

The method for production of steady aerosol spray by dispersion of liquid and its emission in the form of aerosol into atmosphere by air jet with increased pressure, breaking-down into drops and treatment in the field of sound waves. Air and additionally introduced solid material are treated in the swirl chamber, the mixture is directed for flow ofelements of the swirl chamber and resonators and directed into the cavitation mixer of flows with a fairing, where the liquid under pressure is supplied, powder-like and liquid flows are subject to turbulization, intensive mixing is performed and active dispersion of liquid into drops is performed, and they are emitted through adjusting nozzle withformation of a jet of steady aerosol into atmosphere. The device for production of steady aerosol spray contains the nozzle connected with the air pump and the resonator, the swirl chamber with aerodynamically profiled elements, which has the pipes for supply of compressed air in line with the resonators, at that the chamber is connected through the supply unit with the container of solid material, and through the separator with the help of a pipe - with cavitation mixer of powder-like and liquid flows with the fairing and adjusting facilities for supply of liquid and nozzle for formation and discharge of the jet of steady aerosol into atmosphere.

Description

The invention relates to the technique of dispersing liquid and solid material and can be used to obtain finely dispersed aerosol in various industries, agriculture and firefighting.

A well-known device for pulse feeding and finely dispersed spraying of substances (pat RF Mo 2144403, 2000).

But this device does not provide a stable aerosol flame.

A known method for the formation of an aerosol (see the application of the Russian Federation Mo 99108452/ 12, 2001, MIZH 7 VO1 E 3/06), which includes the formation of an aerosol from a fluidized bed in the chamber by directing the flow of the fluid downward to the upper side of the dense layer so that part of the layer on its upper side liquefies and forms an aerosol, change the shape, size and position of the inlet nozzle for the flow of the fluid.

The disadvantage of the known method is that it does not ensure uniform grinding of the liquid into drops and obtaining an aerosol torch.

A known device for the formation of an aerosol | see application of the Russian Federation Mo 99108452/ 12, 2001, IPC 7 VO1 E 3/06), which contains a chamber with a fluidized bed and means for creating an air flow from above to the upper side of the layer so as to ensure partial fluidization from the upper side, the chamber has one inlet and one outlet for the flow of aerosol, pseudo-liquefied with the help of a fluid under pressure.

The disadvantage of the known device is the impossibility of obtaining a stable aerosol with a homogeneous structure.

A method of obtaining a monodisperse aerosol and a device for its implementation, selected as a prototype, are known (see RF patent No. 2164827, 2001. IPC 7 V 05 17/00, 7/12), which includes feeding the liquid into the acoustic nozzle, dispersing it and emission in the form of an aerosol into the atmosphere, formation of a torch by a jet of air with increased pressure from a supersonic nozzle. Liquid consumption is regulated in the nozzle itself, for which it is accelerated through tangential holes in the sleeve, picked up, broken into drops, which are accelerated to significant speeds and crushed by the jet of air flowing from the radial and axial openings of the sleeve, carried out by external forces from the sleeve in the field ultrasonic waves generated by a Hartmann rod resonator.

The disadvantage of the known method is that it does not provide high-quality homogeneous grinding of liquid droplets and obtaining a monodisperse stable aerosol, significant energy costs are also incurred, in addition, solid components are not introduced, which significantly narrows the scope of its use.

The well-known stand for obtaining a monodisperse aerosol was selected as a prototype | see stalemate. RF Mo 2164827, 2001 MIZH 7 V 05 17/00, 7/121, having a supersonic nozzle connected to an air compressor and a nozzle connected to a fluid pump, having a cylindrical body closed at one end and containing a sleeve and a screw, the end of which is equipped with a Hartmann resonator.

The known device does not ensure the production of a monodisperse aerosol, as it does not provide a uniform fine grinding of the liquid into droplets, therefore they cannot create a stable aerosol.

The first of the inventions is based on the task of creating a method of obtaining a stable aerosol torch, in which, by treating air and additionally introduced solid material with a combined vortex and acoustic field in the vortex chamber, the mixture is directed to flow around the aerodynamically profiled elements of the vortex chamber and resonators and fed into the cavitation flow mixer with a fairing, where a liquid is supplied through the regulating device under pressure, in which, due to the turbulence of the gas and liquid flows, the liquid is actively dispersed into drops of the appropriate size, intensively mixed and carried out into the atmosphere through the regulating nozzle, and due to this, the formation of a stable aerosol torch is carried out.

The basis of the second of the group of inventions is the task of creating a device for obtaining a stable aerosol torch, in which, by using a vortex chamber with aerodynamically profiled elements and tangentially located on the side surface compressed air supply nozzles, combined with resonators, and through a separator, to obtain a combined acoustic and vortex field with the help of a nozzle - with a cavitation flow mixer, which contains a fairing and a regulating device for the supply of liquid and a discharge nozzle and the formation of an aerosol torch, which allows for a finer dispersion of material and liquid and obtaining a stable aerosol torch.

The first task is solved by the fact that in the method of obtaining a stable aerosol torch, according to which the liquid is dispersed and carried out in the form of an aerosol into the atmosphere by an air jet with increased pressure, acceleration and breaking into drops and processing in the field of sound waves, according to the invention, air and additionally introduced solid material is processed by combined vortex and acoustic fields in the vortex chamber when flowing around aerodynamically profiled elements of the vortex chamber and resonators connected by a collector, and is directed through a perforated separator with the help of a nozzle into a cavitation flow mixer with a fairing, where with the help of a pressure regulating device a liquid is supplied, in which, due to the turbulence of the dust, gas and liquid flows, intensive mixing and active dispersion of the liquid is carried out on drops of the correspondingly applied size and their removal into the atmosphere through the regulating nozzle with the formation of a stable aerosol torch.

Stage-by-stage intensive processing of air and solid material by combined vortex and acoustic fields in a vortex chamber and liquid in a cavitation mixer with a fairing ensure intensive mixing, active dispersion on drops of the required size, their removal and the formation of a fine-dispersed torch of a stable aerosol.

Treatment of air and additionally introduced solid material by combined vortex and acoustic fields in the vortex chamber ensures the production of a high-quality finely dispersed dust-gas mixture, which makes it possible to obtain a stable aerosol flame with solid ingredients. Active dispersion of the liquid on the droplet in the cavitation flow mixer with a fairing ensures the production of droplets of a given size. Turbulization of dust, gas and liquid flows in the cavitation mixer thanks to the special design of the fairing and regulating nozzle ensures intensive mixing and formation of the required length of the persistent aerosol torch, i.e. the expected technological result is achieved.

Due to the production of a high-quality finely dispersed dust-gas mixture of air and additionally introduced solid material in the vortex chamber, active dispersion of the liquid on drops in the cavitation flow mixer with a fairing, turbulation and mixing of dust-gas and liquid flows and their removal, formation and removal through the regulating nozzle into the atmosphere, the formation is ensured torch of the necessary length of finely dispersed stable aerosol. In this way, the expected technical result is achieved.

The second task is solved by the fact that in the device for obtaining a persistent aerosol torch, which contains a nozzle connected to an air blower and a resonator, according to the invention, it additionally contains a vortex chamber with aerodynamically profiled elements, which has compressed air supply nozzles located tangentially on the side surface combined with resonators, the chamber is connected through a supply device with a container of solid material, and through a separator with the help of a nozzle with a cavitation mixer of dust, gas and liquid flows with a fairing and regulating devices for supplying liquid and a nozzle for the formation and discharge of a stable aerosol torch into the atmosphere.

Designing a device for obtaining a stable aerosol torch in the form of a small-sized vortex chamber with aerodynamically profiled elements and air supply nozzles combined with resonators, and through a separator with the help of a nozzle connected to a cavitation mixer dust, gas and liquid flows with a fairing and regulating devices and a nozzle allows instead of the traditional low-efficiency equipment to create new high-efficiency installations for obtaining a torch of stable finely dispersed aerosol with its length and the possibility of its adjustment and the introduction of various solid ingredients, which will significantly expand the field of use of this technique.

The method of obtaining a stable aerosol torch is carried out on the claimed device for obtaining a stable aerosol torch. According to the proposed invention, the method of obtaining a stable aerosol torch involves processing air and additionally introduced material with combined vortex and acoustic fields in a vortex chamber, which allows obtaining a finely dispersed dust-gas mixture of air and dispersed material, with subsequent turbulation of dust-gas and liquid flows and their intensive mixing . Stage-by-stage active dispersion of liquid on drops in a cavitation mixer with a fairing under the action of the component forces of a highly turbulized flow allows obtaining liquid drops of the appropriate size.

The turbulation of dust, gas and liquid flows in a cavitation mixer with a specially designed fairing creates conditions for their active mixing and the formation of a torch of stable finely dispersed aerosol with ingredients of dusty solid material with much lower energy costs compared to other methods, in particular with the prototype.

Example. Air with increased pressure and solid material additionally introduced from the container through the supply device were sent to be processed by a combined vortex and acoustic field in the vortex chamber, created by the tangential supply of compressed air from the supercharger through nozzles - resonators, the mixture was directed to flow around the aerodynamically profiled elements of the vortex chamber and resonators and through a perforated separator, with the help of a nozzle, the dust, gas and liquid flows were directed into the cavitation mixer with a fairing, where the liquid was fed with the help of regulating devices, the dust, gas and liquid flows were turbulized, intensive mixing and active dispersion of the liquid was carried out on drops of the appropriate applied size, they were removed with the help of a control nozzle formed and discharged a torch of stable aerosol into the atmosphere.

The essence of the invention is explained by the drawings, which are shown in fig. 1 - scheme of the device for obtaining a torch of a stable aerosol, in fig. 2 - a cavitation mixer with liquid supply devices, which includes a container of solid material 1 with a regulating device for its supply 2, an air blower C, a vortex chamber 4 with aerodynamically profiled elements 5 and compressed air supply nozzles combined with resonators 6, which are connected by a collector 7 , and a separator 8, connected by means of a nozzle 9 to a cavitation mixer of dust, gas and liquid flows 10 with a fairing 11, liquid containers 12, regulating devices for the supply of liquid 13 and a nozzle 14 for the formation of a torch 15 and the removal of a persistent aerosol.

The device for obtaining a persistent aerosol torch works as follows. The solid material is fed into the container 1, from where it flows through the regulating device 2 into the vortex chamber 4, where through the nozzles combined with the resonators, air is fed by the supercharger C into the collector 7, where it and the additionally introduced material are processed by combined vortex and acoustic fields, which are formed at flow around the aerodynamically profiled elements 5 of the vortex chamber 4 and resonators 6 to obtain a finely dispersed dust-gas mixture, which is sent through the separator 8 and the nozzle 9 to the cavitation mixer 10 with the fairing 11, where liquid is supplied from the liquid container 12 with the help of regulating devices 13 under pressure, where the active dispersion of liquid on drops, turbulization of dust, gas and liquid flows, intensive mixing to obtain drops of the appropriate applied size and their removal, formation with the help of the regulating nozzle 14 and the torch outlet 15 of a finely dispersed stable aerosol into the atmosphere.

Thus, the claimed method and device for obtaining a persistent aerosol torch allows to implement a fundamentally new method in a highly turbulent combined vortex and acoustic field of a vortex chamber and a cavitation mixer of dust, gas and liquid flows with obtaining a torch of finely dispersed persistent aerosol with solid material ingredients necessary for various purposes with much smaller energy costs.

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Claims (2)

1. The method of obtaining a stable aerosol torch by dispersing a liquid and carrying it in the form of an aerosol into the atmosphere with an air jet with increased pressure, acceleration and breaking into drops and processing in the field of sound waves, which is characterized by the fact that the air and additionally introduced solid material are processed by a combined vortex and acoustic fields in the vortex chamber, direct the mixture to flow around the aerodynamically profiled elements of the vortex chamber and resonators and send it to the cavitation flow mixer with the fairing, where the liquid is supplied under pressure with the help of a regulating device, the dust, gas and liquid flows are turbulized, intensive mixing and active dispersion of the liquid is carried out on drops of the correspondingly given size and their removal through the regulating nozzle with the formation of a torch of stable aerosol into the atmosphere. 2. A device for obtaining a stable aerosol torch containing a nozzle connected to an air blower and a resonator, which is characterized by the fact that it additionally contains a vortex chamber with aerodynamically profiled elements, which has compressed air supply nozzles located tangentially on the side surface, combined with resonators, and the chamber is connected through a supply device to a container of solid material, and through a separator using a nozzle with a cavitation mixer of dust, gas and liquid flows with a fairing and regulating devices for the supply of liquid and a nozzle for the formation and discharge of a stable aerosol torch into the atmosphere.